/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * See LICENSE.txt included in this distribution for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at LICENSE.txt.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 *
 * Portions Copyright (c) 2013 Takayuki Okazaki.
 */

package org.watermint.sourcecolon.org.opensolaris.opengrok.util;

import java.util.regex.Pattern;

/**
 * Various String utility methods.
 *
 * @author austvik
 */
public final class StringUtils {

    private StringUtils() {
        // Only static utility methods
    }

    private static final Pattern javaClassPattern =
            Pattern.compile("([a-z][A-Za-z]*\\.)+[A-Z][A-Za-z0-9]*");

    /**
     * Returns true if the string is possibly a full java class name
     *
     * @param s the string to be checked
     * @return true if string could be a java class name
     */
    public static boolean isPossiblyJavaClass(String s) {
        // Only match a small subset of possible class names to prevent false
        // positives:
        //    - class must be qualified with a package name
        //    - only letters in package name, starting with lower case
        //    - class name must be in CamelCase, starting with upper case
        return javaClassPattern.matcher(s).matches();
    }

}
